OKorder Service Pledge

OKorder Service Pledge

Product Description:

Description of our Tower Crane

The tower crane is a combination of advanced technologies of the present day. The electric control system of the tower crane adopts the advanced “PLC + frequency converter” control mode of the present day, which has realized the stepless speed regulation and greatly improves the reliability, maneuverability and stability of the control system and the work efficiency of the tower crane.

TC 5511 tower crane belong to upper-swing hydraulic climbing tower crane with horizontal jib, winch-jib. All kinds of performance parameters and technical items are up to or better than the National Standard. The max radius is 50m. Independent loading-lifting height is 30m. Attaching loading-lifting height is 121m. The rated load moment is 630KN.m .

Three. Technical specification for temporary power safety on construction site JGJ 46-20055.4.2 within the construction site crane, derrick and Longmen machinery equipment, metal structure and steel scaffolding and under construction in construction projects, when lightning protection devices in adjacent buildings, structures and other facilities outside the protect zone of lightning arrester, lightning protection device should be installed in accordance with the provisions of.5.4.7 lightning protection electrical equipment machinery, connected to the PE line must repeat grounding at the same time, with a repeat of the mechanical and electrical equipment grounding and lightning protection grounding machines can share the same grounding body, but should be consistent with the repeated grounding resistance of grounding resistance requirements.The electrical equipment of 9.2.1 tower crane shall comply with the requirements of the current national standard "safety regulations for tower cranes" GB5144.9.2.2 tower cranes shall be subjected to repeated earthing and lightning protection grounding as specified in Clause 5.4.7 of this code. The earthing device of the track type tower crane shall comply with the following requirements:L the two ends of the rail are respectively provided with a grounding device;The joint of the 2 track is electrically connected, and the ends of the two tracks are electrically connected in the loop;3 long track every is not more than 30m and a grounding device.

Q:National standards for tower cranes

Tower crane GB/T5031 - 2008 has been implemented since February 1, 2009. In accordance with the new standards promulgated, chief editor -- China Academy of Building Research Institute of building mechanization of Langfang, Beijing and Hebei respectively in Hangzhou, Nanning held the new standards xuanguan. Luo Wenlong, director of the standard editor and vice president of Li Shoulin, explained the new standards comprehensively. The new standards are quite different from the previous standards, adding a lot of security related content, mainly embodied in the following 3 aspects: 1) the principle of different. Previously considered issues mainly consider the domestic tower crane industry technology status, appropriately reflect the advanced nature, and now is the requirements and international benchmarking, consider safety. 2) different forms of organization. The standard used in scientific research institutes, universities, factory assistant; the preparation unit including Research Institute, and the host plant, supporting enterprises, universities, inspection unit, there are relatively large units on behalf of (rental business), etc..

Q:Is the tower crane a special type of work?

Certainly, it belongs to the high-altitude workers, not the special workers, what is the tower crane talent network is a platform for the exchange of tower.

Q:What should be included in the disassembly plan of the tower crane?

- 3 - tower crane demolition special program should include the following1. General situation of engineering;2, the tower crane position of the plane and elevation;3. Disassembly order;4, unit weight and hanging point position;5, remove the auxiliary equipment types, performance and arrangement position;6, the power set;7, the construction personnel configuration;8. Rigging and special tools;9, major sources of risk and safety technical measures;10, emergency plans, etc..Note: (1) the special construction plan for the installation and disassembly of tower cranes shall be examined and approved by the units, technology, safety, equipment and other departments, and shall be implemented after approval by the supervisor.(2) the contents and requirements of the special construction scheme for tower crane installation;Compiled from the "building construction tower crane installation, use and disassembly safety technical regulations" JGJ196-2010, please refer to the implementation. Attached: 1, Zhifu Wanda Plaza Tower Crane installation program 2, Muping District Cultural Center project PT7528 tower crane demolition program

Q:What is the difference between a tower crane QTZ31.5 and a QTZ40?

the length of the arm is 42-48 meters; the elevation is 29-32 meters.

Q:Can the tower crane personnel install the construction elevator?

First of all, it is certainly impossible to install the elevator, because the tower and elevator certificate is not the same

Q:When the tower crane foundation is found, what should be discontinued?

The settlement, inclination and cracking of tower crane foundation can affect the stability of tower crane and should be stopped

Q:What is a TQ80 tower crane?

To put it simply, QTZ is updated than the TQ model, and the TQ series first appeared in 70s, and the QTZ series came out in the 80,90. Various parameters must be more advanced than TQ.

Q:How much height should tower crane work at M?

High building one meter high voltage line to keep the relevant national standard to ensure the forearm and the adjacent adjacent tower crane tower crane standard section has a safe distance of 2 meters, big boom high high tower mechanism area covering more than one meter, the end will need to receive from the nearest cab hook.

Q:What are the luffing, slewing, and walking points of a tower crane?

The luffing of a tower crane is the forearm of a crane;Slewing means the steering mechanism of a crane;Walking means the walking trolley on the luffing range of a crane